build cleanly on RedHat 8.0

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@124 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 163 insertions, 189 deletions

diff --git a/configure.in b/configure.in
index f497482..17952e7 100644
--- a/configure.in
+++ b/configure.in
@@ -21,9 +21,9 @@ AC_PROG_CC
 AC_PROG_MAKE_SET
 AC_PROG_AWK
 
-AC_FUNC_GETLOADAVG
+AC_FUNC_GETLOADAVG(plugins)
 AC_FUNC_STRTOD
-AM_WITH_REGEX
+dnl AM_WITH_REGEX
 AC_PROG_RANLIB
 
 AC_PATH_PROG(ACLOCAL,aclocal)
@@ -43,10 +43,6 @@ AC_SUBST(WARRANTY)
 SUPPORT="Send email to nagios-users@lists.sourceforge.net if you have questions\nregarding use of this software. To submit patches or suggest improvements,\nsend email to nagiosplug-devel@lists.sourceforge.net\n"
 AC_SUBST(SUPPORT)
 
-dnl AC_ARG_PROGRAM
-
-dnl AC_ARG_WITH(nonposix_state_defs,--with-nonposix-state-defs uses POSIXLY incorrect states for netsaint < 0.0.7b2,,AC_DEFINE(POSIX_STATE_DEFS))
-
 dnl CGIURL has changed for Nagios with 1.0 beta
 AC_ARG_WITH(cgiurl,--with-cgiurl=<dir> sets URL for cgi programs,cgiurl=$withval,cgiurl=/nagios/cgi-bin)
 CGIURL="$cgiurl"
@@ -80,8 +76,6 @@ dnl
 dnl Checks for libraries.
 dnl
 
-AC_FUNC_GETLOADAVG(plugins)
-
 AC_CHECK_LIB(dce,main,SOCKETLIBS="$SOCKETLIBS -ldce")
 AC_CHECK_LIB(nsl,main,SOCKETLIBS="$SOCKETLIBS -lnsl")
 AC_CHECK_LIB(socket,socket,SOCKETLIBS="$SOCKETLIBS -lsocket")
@@ -282,7 +276,7 @@ AC_TRY_RUN([#include <stdio.h>
 main() { long long x = 1000000; x *= x; exit(((x/1000000) == 1000000)? 0: 1); }],
 ac_cv_have_longlong=yes,ac_cv_have_longlong=no,ac_cv_have_longlong=cross)])
 if test x"$ac_cv_have_longlong" = x"yes"; then
-    AC_DEFINE(HAVE_LONGLONG)
+    AC_DEFINE(HAVE_LONGLONG,1,[Define if system has long long type])
 fi
 
 #
@@ -293,14 +287,14 @@ AC_CACHE_CHECK([for LL suffix on long long integers],ac_cv_compiler_supports_ll,
     AC_TRY_COMPILE([#include <stdio.h>],[long long i = 0x8000000000LL],
         ac_cv_compiler_supports_ll=yes,ac_cv_compiler_supports_ll=no)])
 if test x"$ac_cv_compiler_supports_ll" = x"yes"; then
-   AC_DEFINE(COMPILER_SUPPORTS_LL)
+   AC_DEFINE(COMPILER_SUPPORTS_LL,1,[Define if compiler support long long])
 fi
 AC_CACHE_CHECK([for __va_copy],ac_cv_HAVE_VA_COPY,[
 AC_TRY_LINK([#include <stdarg.h>
 va_list ap1,ap2;], [__va_copy(ap1,ap2);],
 ac_cv_HAVE_VA_COPY=yes,ac_cv_HAVE_VA_COPY=no)])
 if test x"$ac_cv_HAVE_VA_COPY" = x"yes"; then
-    AC_DEFINE(HAVE_VA_COPY)
+    AC_DEFINE(HAVE_VA_COPY,1,[Define if system has va_copy])
 fi
 
 AC_CACHE_CHECK([for C99 vsnprintf],ac_cv_HAVE_C99_VSNPRINTF,[
@@ -330,7 +324,7 @@ main() { foo("hello"); }
 ],
 ac_cv_HAVE_C99_VSNPRINTF=yes,ac_cv_HAVE_C99_VSNPRINTF=no,ac_cv_HAVE_C99_VSNPRINTF=cross)])
 if test x"$ac_cv_HAVE_C99_VSNPRINTF" = x"yes"; then
-    AC_DEFINE(HAVE_C99_VSNPRINTF)
+    AC_DEFINE(HAVE_C99_VSNPRINTF,1,[Define if system has C99 compatible vsnprintf])
 fi
 
 dnl We used to not do long options unless a compatible lib was found
@@ -369,7 +363,7 @@ AC_TRY_COMPILE([#include <stdlib.h>
 if test -f "/proc/loadavg"
 then
   AC_DEFINE(HAVE_PROC_LOADAVG,1,[Define if /proc/loadavg or similar exists])
-  AC_DEFINE_UNQUOTED(PROC_LOADAVG,"/proc/loadavg"[Location of /proc/loadavg])
+  AC_DEFINE_UNQUOTED(PROC_LOADAVG,"/proc/loadavg",[Location of /proc/loadavg])
 fi
 
 AC_PATH_PROG(PATH_TO_PS,ps)
@@ -377,164 +371,164 @@ dnl OpenBSD (needs to come early because -exo appears to work, but does not give
 dnl  STAT UCOMM              VSZ   RSS USER       UID  PPID COMMAND
 if [ps -axo 'stat comm vsz rss user uid ppid args' 2>/dev/null | egrep -i "^ *S[TAUES]* +[UCOMDNA]+ +[VSIZE]+ +R[S]+ +U[SER]+ +U[ID]+ +P[PID]+ +[RGSCOMDNA]+" >/dev/null]
 then
-        AC_DEFINE(USE_PS_VARS)
-        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos])
-        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS -axo 'stat user ppid args'")
+        AC_DEFINE(USE_PS_VARS,1,[Define if 'ps' will be parsed with sscanf])
+        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[Variable list for sscanf of 'ps' output])
+        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS -axo 'stat user ppid args'",[Verbatim command to execute for ps in check_netsaint])
         EXTRAS="$EXTRAS check_nagios"
-        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -axo 'stat uid ppid comm args'")
-        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n")
-        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -axo 'vsz comm'")
-        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s")
-        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -axo 'rss comm'")
-        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s")
+        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -axo 'stat uid ppid comm args'",[Verbatim command to execute for ps in check_procs])
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n",[Format string for scanning ps output in check_procs])
+        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -axo 'vsz comm'",[Verbatim command to execute for ps in check_vsz])
+        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s",[Format string for scanning ps output in check_vsz])
+        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -axo 'rss comm'",[Verbatim command to execute for ps in check_rss])
+        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[Format string for scanning ps output in check_rss])
   echo "      ps syntax... $PATH_TO_PS -axo 'stat comm vsz rss user ppid args'"
 dnl AIX 4.3.3 - needs verification.
 elif [ps -ao 'stat comm vsz rss user uid ppid args' 2>/dev/null | egrep -i "^ *S[TAUES]* +[UCOMDNA]+ +[VSIZE]+ +R[S]+ +U[SER]+ +U[ID]+ +P[PID]+ +[RGSCOMDNA]+" >/dev/null]
 then
-        AC_DEFINE(USE_PS_VARS)
-        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos])
-        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS -ao 'stat user ppid args'")
+        AC_DEFINE(USE_PS_VARS,1,[Define if 'ps' will be parsed with sscanf])
+        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[Variable list for sscanf of 'ps' output])
+        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS -ao 'stat user ppid args'",[Verbatim command to execute for ps in check_netsaint])
         EXTRAS="$EXTRAS check_nagios"
         AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -ao 'stat uid ppid comm args'")
-        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n")
-        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -ao 'vsz comm'")
-        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s")
-        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -ao 'rss comm'")
-        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s")
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n"[Format string for scanning ps output in check_procs])
+        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -ao 'vsz comm'",[])
+        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s",[])
+        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -ao 'rss comm'",[])
+        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[])
   echo "      ps syntax... $PATH_TO_PS -ao 'stat comm vsz rss user ppid args'"
 elif [ps -eo 's comm vsz rss user uid ppid args' 2>/dev/null | egrep -i "^S[TAUES]* +C[OMDNA]+ +[VSIZE]+ +U[SER]+ +U[ID]+ +P[PID]+ +[RGSCOMDNA]+" >/dev/null]
 then
-        AC_DEFINE(USE_PS_VARS)
-        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos])
-        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS -eo 's user ppid args'")
+        AC_DEFINE(USE_PS_VARS,1,[Define if 'ps' will be parsed with sscanf])
+        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[Variable list for sscanf of 'ps' output])
+        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS -eo 's user ppid args'",[Verbatim command to execute for ps in check_netsaint])
         EXTRAS="$EXTRAS check_nagios"
         AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -eo 's uid ppid comm args'")
-        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n")
-        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -eo 'vsz comm'")
-        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s")
-        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -eo 'rss comm'")
-        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s")
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n"[Format string for scanning ps output in check_procs])
+        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -eo 'vsz comm'",[])
+        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s",[])
+        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -eo 'rss comm'",[])
+        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[])
         echo "      ps syntax... $PATH_TO_PS -eo 's  comm vsz rss user ppid args'"
 elif [ps -Ao 's comm vsz rss uid user ppid args' 2>/dev/null | egrep -i "^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PPID +[RGSCOMDNA]+" >/dev/null]
 then
-        AC_DEFINE(USE_PS_VARS)
-        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos])
-        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS -Ao 's user ppid args'")
+        AC_DEFINE(USE_PS_VARS,1,[Define if 'ps' will be parsed with sscanf])
+        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[Variable list for sscanf of 'ps' output])
+        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS -Ao 's user ppid args'",[Verbatim command to execute for ps in check_netsaint])
         EXTRAS="$EXTRAS check_nagios"
-        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -Ao 's uid ppid comm args'")
-        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n")
-        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -Ao 'vsz comm'")
-        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s")
-        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -Ao 'rss comm'")
-        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s")
+        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -Ao 's uid ppid comm args'",[])
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n"[Format string for scanning ps output in check_procs],[])
+        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -Ao 'vsz comm'",[])
+        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s",[])
+        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -Ao 'rss comm'",[])
+        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[])
         echo "      ps syntax... $PATH_TO_PS -Ao 's comm vsz rss'"
 elif [ps -Ao 'status comm vsz rss uid user ppid args' 2>/dev/null | egrep -i "^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PPID +[RGSCOMDNA]+" >/dev/null]
 then
-        AC_DEFINE(USE_PS_VARS)
+        AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos])
-        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS -Ao 'status user ppid args'")
+        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS -Ao 'status user ppid args'",[Verbatim command to execute for ps in check_netsaint])
         EXTRAS="$EXTRAS check_nagios"
-        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -Ao 'status uid ppid comm args'")
-        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n")
-        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -Ao 'vsz comm'")
-        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s")
-        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -Ao 'rss comm'")
-        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s")
+        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -Ao 'status uid ppid comm args'",[])
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n"[Format string for scanning ps output in check_procs])
+        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -Ao 'vsz comm'",[])
+        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s",[])
+        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -Ao 'rss comm'",[])
+        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[])
         echo "      ps syntax... $PATH_TO_PS -Ao 'status comm vsz rss'"
 elif [ps -Ao 'state comm vsz rss uid user ppid args' 2>/dev/null | egrep -i "^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PPID +[RGSCOMDNA]+" >/dev/null]
 then
-        AC_DEFINE(USE_PS_VARS)
+        AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
         AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos])
-        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS -Ao 'state user ppid args'")
+        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS -Ao 'state user ppid args'",[Verbatim command to execute for ps in check_netsaint])
         EXTRAS="$EXTRAS check_nagios"
-        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -Ao 'state uid ppid comm args'")
-        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n")
-        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -Ao 'vsz comm'")
-        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s")
-        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -Ao 'rss comm'")
-        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s")
+        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -Ao 'state uid ppid comm args'",[])
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n"[Format string for scanning ps output in check_procs])
+        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -Ao 'vsz comm'",[])
+        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s",[])
+        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -Ao 'rss comm'",[])
+        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[])
         echo "      ps syntax... $PATH_TO_PS -Ao 'state comm vsz rss'"
 dnl wonder who takes state instead of stat
 elif [ps -ao 'state command vsz rss user ppid args' 2>/dev/null | egrep -i "^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PPID +[RGSCOMDNA]+" >/dev/null]
 then
-        AC_DEFINE(USE_PS_VARS)
-        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos])
-        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS -ao 'state user ppid args'")
+        AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
+        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[])
+        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS -ao 'state user ppid args'",[])
         EXTRAS="$EXTRAS check_nagios"
-        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -ao 'state uid ppid command args'")
-        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n")
-        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -ao 'vsz command'")
-        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s")
-        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -ao 'rss command'")
-        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s")
+        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -ao 'state uid ppid command args'",[])
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n",[])
+        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -ao 'vsz command'",[])
+        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s",[])
+        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -ao 'rss command'",[])
+        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[])
         echo "      ps syntax... $PATH_TO_PS -ao 'state command vsz rss'"
 dnl FreeBSD
 elif [ps waxco 'state command vsz rss uid user ppid' 2>/dev/null | egrep -i "^STAT +COMMAND +VSZ +RSS +UID +USER +PPID" >/dev/null]
 then
-        AC_DEFINE(USE_PS_VARS)
-        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos])
-        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS waxo 'state uid ppid command'")
+        AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
+        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[])
+        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS waxo 'state uid ppid command'",[])
         EXTRAS="$EXTRAS check_nagios"
-        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS waxco 'state uid ppid command command'")
-        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n")
-        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS waxco 'vsz command'")
-        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s")
-        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS waxco 'rss command'")
-        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s")
+        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS waxco 'state uid ppid command command'",[])
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n",[])
+        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS waxco 'vsz command'",[])
+        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s",[])
+        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS waxco 'rss command'",[])
+        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s",[])
         echo "      ps syntax... $PATH_TO_PS -Ao 'state command vsz rss'"
 dnl BSD-like mode in RH 6.1
 elif [ps waxno 'state comm vsz rss uid user ppid args' 2>/dev/null | egrep -i "^S +COMMAND +VSZ +RSS +UID +USER +PPID +[RGSCOMDNA]+" >/dev/null]
 then
-        AC_DEFINE(USE_PS_VARS)
-        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos])
-        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS waxno 'state user ppid comm'")
+        AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
+        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,procprog,&pos],[])
+        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS waxno 'state user ppid comm'",[])
         EXTRAS="$EXTRAS check_nagios"
-        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS waxno 'state uid ppid comm args'")
-        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n")
-        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS waxno 'vsz comm'")
-        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s")
-        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS waxno 'rss comm'")
-        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s")
+        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS waxno 'state uid ppid comm args'",[])
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %d %s %n",[])
+        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS waxno 'vsz comm'",[])
+        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%d %s",[])
+        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS waxno 'rss comm'",[])
+        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%d %s,[]")
         echo "      ps syntax... $PATH_TO_PS -waxco 'state comm vsz rss'"
 dnl IRIX 53
 elif [ps -el 2>/dev/null | egrep -i "^ *F +S +UID +PID +PPID +C +PRI +NI +P +SZ +RSS +WCHAN +TTY +TIME +[RGSCOMDNA]+" >/dev/null]
 then
-        AC_DEFINE(USE_PS_VARS)
-        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,&pos,procprog])
-        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -el")
-        AC_DEFINE_UNQUOTED(PS_FORMAT,"%*s %s %d %*s %d %*s %*s %*s %*s %*s %*s %*s %*s %*s %n%s")
-        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -el")
-        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%*s %*s %*s %*s %d")
-        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -el")
+        AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
+        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,&pos,procprog],[])
+        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -el",[])
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%*s %s %d %*s %d %*s %*s %*s %*s %*s %*s %*s %*s %*s %n%s",[])
+        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -el",[])
+        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%*s %*s %*s %*s %d",[])
+        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -el",[])
         AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %d")
         echo "      ps syntax... $PATH_TO_PS -el"
 dnl IRIX 63
 elif [ps -el 2>/dev/null | egrep -i "^ *F +S +UID +PID +PPID +C +PRI +NI +P +ADDR +SZ +RSS +WCHAN +TTY +TIME +[RGSCOMDNA]+" >/dev/null]
 then
-        AC_DEFINE(USE_PS_VARS)
-        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,&pos,procprog])
-        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -el")
-        AC_DEFINE_UNQUOTED(PS_FORMAT,"%*s %s %d %*s %d %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %n%s")
-        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -el")
-        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%*s %*s %*s %*s %d")
-        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -el")
-        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %d")
+        AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
+        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,&pos,procprog],[])
+        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -el",[])
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%*s %s %d %*s %d %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %n%s",[])
+        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -el",[])
+        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%*s %*s %*s %*s %d",[])
+        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -el",[])
+        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %d",[])
         echo "      ps syntax... $PATH_TO_PS -el"
 dnl SunOS 4.1.3:
 dnl  F  UID  PID  PPID  CP  PRI  NI  SZ  RSS  WCHAN  STAT  TT  TIME  COMMAND
 dnl
 elif [ps -laxnwww 2>/dev/null | egrep -i "^ *F(LAGS)? +UID +PID +PPID +CP +PRI +NI +(SZ)|(VSZ)|(SIZE) +RSS +WCHAN +STAT? +TTY? +TIME +COMMAND" >/dev/null]
 then
-        AC_DEFINE(USE_PS_VARS)
-        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS laxnwww")
+        AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
+        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS laxnwww",[])
         EXTRAS="$EXTRAS check_nagios"
-        AC_DEFINE_UNQUOTED(PS_VARLIST,[&procuid,&procppid,procstat,&pos,procprog])
-        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -laxnwww")
-        AC_DEFINE_UNQUOTED(PS_FORMAT,"%*s %d %*s %d %*s %*s %*s %*s %*s %*s %s %*s %*s %n%s")
-        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS laxnwww")
-        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %d")
-        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS laxnwww")
-        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %*s %d")
+        AC_DEFINE_UNQUOTED(PS_VARLIST,[&procuid,&procppid,procstat,&pos,procprog],[])
+        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -laxnwww",[])
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%*s %d %*s %d %*s %*s %*s %*s %*s %*s %s %*s %*s %n%s",[])
+        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS laxnwww",[])
+        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %d",[])
+        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS laxnwww",[])
+        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %*s %d",[])
         echo "      ps syntax... $PATH_TO_PS laxnwww"
 dnl Debian Linux / procps v1.2.9:
 dnl  FLAGS   UID   PID  PPID PRI  NI   SIZE   RSS WCHAN       STA TTY TIME COMMAND
@@ -542,16 +536,16 @@ dnl    100     0     1     0   0   0    776    76  c0131c8c   S  ffff  0:11 init
 dnl
 elif [ps laxnwww 2>/dev/null | egrep -i "^ *F(LAGS)? +UID +PID +PPID +PRI +NI +(VSZ)|(SIZE) +RSS +WCHAN +STAT? TTY +TIME +COMMAND" >/dev/null]
 then
-        AC_DEFINE(USE_PS_VARS)
-        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS laxnwww")
+        AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
+        AC_DEFINE_UNQUOTED(PS_RAW_COMMAND,"$PATH_TO_PS laxnwww",[])
         EXTRAS="$EXTRAS check_nagios"
-        AC_DEFINE_UNQUOTED(PS_VARLIST,[&procuid,&procppid,procstat,&pos,procprog])
-        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS laxnwww")
-        AC_DEFINE_UNQUOTED(PS_FORMAT,"%*s %d %*s %d %*s %*s %*s %*s %*s %s %*s %*s %n%s")
-        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS laxnwww")
-        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%*s %*s %*s %*s %*s %*s %d")
-        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS laxnwww")
-        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %d")
+        AC_DEFINE_UNQUOTED(PS_VARLIST,[&procuid,&procppid,procstat,&pos,procprog],[])
+        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS laxnwww",[])
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%*s %d %*s %d %*s %*s %*s %*s %*s %s %*s %*s %n%s",[])
+        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS laxnwww",[])
+        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%*s %*s %*s %*s %*s %*s %d",[])
+        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS laxnwww",[])
+        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %d",[])
         echo "      ps syntax... $PATH_TO_PS laxnwww"
 dnl    
 dnl AIX 4.1:
@@ -559,47 +553,27 @@ dnl     F S      UID   PID  PPID   C PRI NI ADDR  SZ  RSS   WCHAN    TTY  TIME C
 dnl    303 A        0     0     0 120  16 -- 1c07  20   24              -  0:45 swapper
 elif [ps -el 2>/dev/null | egrep -i "^ *F +S +UID +PID +PPID +C +PRI +NI +ADDR +SZ +WCHAN +TTY +TIME +[RGSCOMDNA]+" >/dev/null]
 then
-        AC_DEFINE(USE_PS_VARS)
-        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,&pos,procprog])
-        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -el")
-        AC_DEFINE_UNQUOTED(PS_FORMAT,"%*s %s %d %*s %d %*s %*s %*s %*s %*s %*s %*s %*s %n%s")
-        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -el")
-        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %*s %*s %d")
-        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -el")
-        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %*s %*s %d")
+        AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
+        AC_DEFINE_UNQUOTED(PS_VARLIST,[procstat,&procuid,&procppid,&pos,procprog],[])
+        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS -el",[])
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%*s %s %d %*s %d %*s %*s %*s %*s %*s %*s %*s %*s %n%s",[])
+        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS -el",[])
+        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %*s %*s %d",[])
+        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS -el",[])
+        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %*s %*s %d",[])
         echo "      ps syntax... $PATH_TO_PS -el"
 dnl AIX?
 elif [ps glaxen 2>/dev/null | egrep -i "^ *F +UID +PID +PPID +PRI +NI +VSZ +RSS +WCHAN +STAT +TTY +TIME +COMMAND" >/dev/null]
 then
-        AC_DEFINE(USE_PS_VARS)
-        AC_DEFINE_UNQUOTED(PS_VARLIST,[&procuid,&procppid,procstat,&pos,procprog])
-        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS glaxen")
-        AC_DEFINE_UNQUOTED(PS_FORMAT,"%*s %d %*s %d %*s %*s %*s %*s %*s %s %*s %*s %n%s")
-        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS glaxen")
-        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%*s %*s %*s %*s %*s %*s %d")
-        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS glaxen")
-        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %d")
+        AC_DEFINE(USE_PS_VARS,1,[Define if we use custom variable list for sscanf])
+        AC_DEFINE_UNQUOTED(PS_VARLIST,[&procuid,&procppid,procstat,&pos,procprog],[])
+        AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS glaxen",[])
+        AC_DEFINE_UNQUOTED(PS_FORMAT,"%*s %d %*s %d %*s %*s %*s %*s %*s %s %*s %*s %n%s",[])
+        AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS glaxen",[])
+        AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%*s %*s %*s %*s %*s %*s %d",[])
+        AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS glaxen",[])
+        AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %*s %*s %d",[])
         echo "      ps syntax... $PATH_TO_PS glaxen"
-dnl ucb style?
-dnl elif [ps axun 2>/dev/null | egrep -i "^USER +PID +%CPU +%MEM +SIZE +RSS +TTY +STAT +START +TIME +COMMAND *$" >/dev/null]
-dnl then
-dnl     AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS axun")
-dnl     AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %*s %*s %*s %*s %*s %s %*s %*s %s")
-dnl     AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS axun")
-dnl     AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%*s %*s %*s %*s %d")
-dnl     AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS axun")
-dnl     AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %d")
-dnl     echo "      ps syntax... $PATH_TO_PS axun"
-dnl ucb style?
-dnl elif [ps axun 2>/dev/null | egrep -i "^USER +PID +%CPU +%MEM +SIZE +RSS +TTY +STAT +START +TIME +COMMAND" >/dev/null]
-dnl then
-dnl     AC_DEFINE_UNQUOTED(PS_COMMAND,"$PATH_TO_PS axun")
-dnl     AC_DEFINE_UNQUOTED(PS_FORMAT,"%s %d %*s %*s %*s %*s %*s %s %*s %*s %s")
-dnl     AC_DEFINE_UNQUOTED(VSZ_COMMAND,"$PATH_TO_PS axun")
-dnl     AC_DEFINE_UNQUOTED(VSZ_FORMAT,"%*s %*s %*s %*s %d")
-dnl     AC_DEFINE_UNQUOTED(RSS_COMMAND,"$PATH_TO_PS axun")
-dnl     AC_DEFINE_UNQUOTED(RSS_FORMAT,"%*s %*s %*s %*s %*s %d")
-dnl     echo "      ps syntax... $PATH_TO_PS axun"
 else
         echo "** Unable to find usable ps syntax"
 fi
@@ -607,27 +581,27 @@ fi
 AC_ARG_WITH(df_command,--with-df-command=<syntax> sets syntax for df,DF_COMMAND=$withval)
 if test -n "$DF_COMMAND"
 then
-        AC_DEFINE_UNQUOTED(DF_COMMAND,"$DF_COMMAND")
+        AC_DEFINE_UNQUOTED(DF_COMMAND,"$DF_COMMAND",[path and args for df command])
 elif [df -Pk 2>/dev/null | egrep -i "^(/dev/|[a-zA-Z]:)[a-z0-9/\\]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+% +/[a-z0-9/\\]*" >/dev/null]
 then
         AC_PATH_PROG(PATH_TO_DF,df)
         AC_MSG_RESULT("      df syntax... $PATH_TO_DF -Pk")
-        AC_DEFINE_UNQUOTED(DF_COMMAND,"$PATH_TO_DF -Pk")
+        AC_DEFINE_UNQUOTED(DF_COMMAND,"$PATH_TO_DF -Pk",[path and args for df command])
 elif [df -k 2>/dev/null | egrep -i "^/dev/[a-z0-9/]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+% +/[a-z0-9/]*" >/dev/null]
 then
         AC_PATH_PROG(PATH_TO_DF,df)
         AC_MSG_RESULT("      df syntax... $PATH_TO_DF -k")
-        AC_DEFINE_UNQUOTED(DF_COMMAND,"$PATH_TO_DF -k")
+        AC_DEFINE_UNQUOTED(DF_COMMAND,"$PATH_TO_DF -k",[path and args for df command])
 elif [df 2>/dev/null | egrep -i "^/dev/[a-z0-9/]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+% +/[a-z0-9/]*" >/dev/null]
 then
         AC_PATH_PROG(PATH_TO_DF,df)
         AC_MSG_RESULT("      df syntax... $PATH_TO_DF")
-        AC_DEFINE_UNQUOTED(DF_COMMAND,"$PATH_TO_DF")
+        AC_DEFINE_UNQUOTED(DF_COMMAND,"$PATH_TO_DF",[path and args for df command])
 elif [bdf 2>/dev/null | egrep -i "^/dev/[a-z0-9/]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+% +/[a-z0-9/]*" >/dev/null]
 then
         AC_PATH_PROG(PATH_TO_DF,bdf)
         AC_MSG_RESULT("      df syntax... $PATH_TO_DF")
-        AC_DEFINE_UNQUOTED(DF_COMMAND,"$PATH_TO_DF")
+        AC_DEFINE_UNQUOTED(DF_COMMAND,"$PATH_TO_DF",[path and args for df command])
 else
         AC_MSG_WARN("unable to find usable df syntax")
 fi
@@ -640,17 +614,17 @@ then
         echo "      ping syntax... (command-line) $PING_COMMAND"
         if test -n "$PING_PACKETS_FIRST"
         then
-                AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND")
+                AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND",[Define if packet count must precede host])
         fi
 elif [ping -n -U -c 1 127.0.0.1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null]
 then
         PING_COMMAND="$PATH_TO_PING -n -U -c %d %s"
-        AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND")
+        AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND",[Define if packet count must precede host])
         echo "      ping syntax... $PATH_TO_PING -n -U -c <count> <host>"
 elif [ping -n -c 1 127.0.0.1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null]
 then
         PING_COMMAND="$PATH_TO_PING -n -c %d %s"
-        AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND")
+        AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND",[Define if packet count must precede host])
         echo "      ping syntax... $PATH_TO_PING -n -c <count> <host>"
 elif [ping -n 127.0.0.1 -c 1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null]
 then
@@ -671,17 +645,17 @@ then
 elif [ping -n -s 56 -c 1 127.0.0.1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null]
 then
         PING_COMMAND="$PATH_TO_PING -n -s 56 -c %d %s"
-        AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND")
+        AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND",[Define if packet count must precede host])
         echo "      ping syntax... $PATH_TO_PING -n -s 56 -c <count> <host>"
 elif [ping -n -c 1 127.0.0.1 2>/dev/null | egrep -i "^round-trip|^rtt" >/dev/null]
 then
         PING_COMMAND="$PATH_TO_PING -n -c %d %s"
-        AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND")
+        AC_DEFINE_UNQUOTED(PING_PACKETS_FIRST,"$PING_COMMAND",[Define if packet count must precede host])
         echo "      ping syntax... $PATH_TO_PING -n -c <count> <host>"
 else
         AC_MSG_WARN("unable to find usable ping syntax")
 fi
-AC_DEFINE_UNQUOTED(PING_COMMAND,"$PING_COMMAND")
+AC_DEFINE_UNQUOTED(PING_COMMAND,"$PING_COMMAND",[path and args for ping command])
 
 AC_PATH_PROG(PATH_TO_NSLOOKUP,nslookup)
 if test -n "$ac_cv_path_PATH_TO_NSLOOKUP"
@@ -690,10 +664,10 @@ then
         if [nslookup -sil 127.0.0.1 2>&1 | grep "*** Invalid option: sil" >/dev/null]
         then
                 AC_MSG_RESULT("$PATH_TO_NSLOOKUP")
-                AC_DEFINE_UNQUOTED(NSLOOKUP_COMMAND,"$PATH_TO_NSLOOKUP")
+                AC_DEFINE_UNQUOTED(NSLOOKUP_COMMAND,"$PATH_TO_NSLOOKUP",[path and args for nslookup])
         else
                 AC_MSG_RESULT("$PATH_TO_NSLOOKUP -sil")
-                AC_DEFINE_UNQUOTED(NSLOOKUP_COMMAND,"$PATH_TO_NSLOOKUP -sil")
+                AC_DEFINE_UNQUOTED(NSLOOKUP_COMMAND,"$PATH_TO_NSLOOKUP -sil",[path and args for nslookup])
         fi
         EXTRAS="$EXTRAS check_dns"
 else
@@ -707,7 +681,7 @@ then
         if [host 127.0.0.1 2>&1 | grep -v "ommand not found" > /dev/null]
         then
                 AC_MSG_RESULT("$PATH_TO_HOST")
-                AC_DEFINE_UNQUOTED(HOST_COMMAND,"$PATH_TO_HOST")
+                AC_DEFINE_UNQUOTED(HOST_COMMAND,"$PATH_TO_HOST",[path to host binary])
         fi
         EXTRAS="$EXTRAS check_dns"
 else    
@@ -715,17 +689,17 @@ else
 fi
 
 AC_PATH_PROG(PATH_TO_UPTIME,uptime)
-AC_DEFINE_UNQUOTED(PATH_TO_UPTIME,"$PATH_TO_UPTIME")
+AC_DEFINE_UNQUOTED(PATH_TO_UPTIME,"$PATH_TO_UPTIME",[path to uptime binary])
 
 AC_PATH_PROG(PATH_TO_RPCINFO,rpcinfo)
-AC_DEFINE_UNQUOTED(PATH_TO_RPCINFO,"$PATH_TO_RPCINFO")
+AC_DEFINE_UNQUOTED(PATH_TO_RPCINFO,"$PATH_TO_RPCINFO",[path to rpcinfo binary])
 
 AC_PATH_PROG(PATH_TO_NTPDATE,ntpdate)
 AC_PATH_PROGS(PATH_TO_NTPDC,ntpdc xntpdc)
 if (test -x "$PATH_TO_NTPDATE" || test -x "$PATH_TO_NTPDC")
 then
-        AC_DEFINE_UNQUOTED(PATH_TO_NTPDC,"$PATH_TO_NTPDC")
-        AC_DEFINE_UNQUOTED(PATH_TO_NTPDATE,"$PATH_TO_NTPDATE")
+        AC_DEFINE_UNQUOTED(PATH_TO_NTPDC,"$PATH_TO_NTPDC",[path to ntpdc binary])
+        AC_DEFINE_UNQUOTED(PATH_TO_NTPDATE,"$PATH_TO_NTPDATE",[path to ntpdate binary])
 else
         echo "** Install NTP programs (http://www.ntp.org) if you want to monitor time synchronization"
 fi
@@ -733,7 +707,7 @@ fi
 AC_PATH_PROG(PATH_TO_LMSTAT,lmstat)
 if test -x "$PATH_TO_LMSTAT"
 then
-        AC_DEFINE_UNQUOTED(PATH_TO_LMSTAT,"$PATH_TO_LMSTAT")
+        AC_DEFINE_UNQUOTED(PATH_TO_LMSTAT,"$PATH_TO_LMSTAT",[path to lmstat])
 else
         echo "** Get lmstat from Globetrotter Software to monitor flexlm licenses"
 fi
@@ -741,7 +715,7 @@ fi
 AC_PATH_PROG(PATH_TO_SMBCLIENT,smbclient)
 if test -x "$PATH_TO_SMBCLIENT"
 then
-        AC_DEFINE_UNQUOTED(PATH_TO_SMBCLIENT,"$PATH_TO_SMBCLIENT")
+        AC_DEFINE_UNQUOTED(PATH_TO_SMBCLIENT,"$PATH_TO_SMBCLIENT",[path to smbclient binary])
 else
         echo "** Get smbclient from Samba.org to monitor SMB shares"
 fi
@@ -750,15 +724,15 @@ fi
 AC_PATH_PROG(PATH_TO_WHO,who)
 if [who -q 2>/dev/null | egrep -i "^# users=[0-9]+$" >/dev/null]
 then
-        AC_DEFINE_UNQUOTED(WHO_COMMAND,"$PATH_TO_WHO -q")
+        AC_DEFINE_UNQUOTED(WHO_COMMAND,"$PATH_TO_WHO -q",[path and arguments for invoking 'who'])
 else
-        AC_DEFINE_UNQUOTED(WHO_COMMAND,"$PATH_TO_WHO")
+        AC_DEFINE_UNQUOTED(WHO_COMMAND,"$PATH_TO_WHO",[path and arguments for invoking 'who'])
 fi
 
 AC_PATH_PROG(PATH_TO_SNMPGET,snmpget)
 if test -x "$PATH_TO_SNMPGET"
 then
-        AC_DEFINE_UNQUOTED(PATH_TO_SNMPGET,"$PATH_TO_SNMPGET")
+        AC_DEFINE_UNQUOTED(PATH_TO_SNMPGET,"$PATH_TO_SNMPGET",[path to snmpget binary])
         EXTRAS="$EXTRAS check_hpjd check_snmp"
 else
         echo "** Get snmpget from http://net-snmp.sourceforge.net to make check_hpjd and check_snmp plugins"
@@ -767,7 +741,7 @@ fi
 AC_PATH_PROG(PATH_TO_SNMPGETNEXT,snmpgetnext)
 if test -x "$PATH_TO_SNMPGETNEXT"
 then
-        AC_DEFINE_UNQUOTED(PATH_TO_SNMPGETNEXT,"$PATH_TO_SNMPGETNEXT")
+        AC_DEFINE_UNQUOTED(PATH_TO_SNMPGETNEXT,"$PATH_TO_SNMPGETNEXT",[path to snmpgetnext binary])
 fi
 
 if ( $PERL -M"Net::SNMP 3.6" -e 'exit' 2>/dev/null  )
@@ -782,11 +756,11 @@ AC_PATH_PROG(PATH_TO_QUAKESTAT,quakestat)
 AC_PATH_PROG(PATH_TO_QSTAT,qstat)
 if test -x "$PATH_TO_QUAKESTAT"
 then
-        AC_DEFINE_UNQUOTED(PATH_TO_QSTAT,"$PATH_TO_QUAKESTAT")
+        AC_DEFINE_UNQUOTED(PATH_TO_QSTAT,"$PATH_TO_QUAKESTAT",[path to qstat/quakestat])
         EXTRAS="$EXTRAS check_game"
 elif test -x "$PATH_TO_QSTAT"
 then
-        AC_DEFINE_UNQUOTED(PATH_TO_QSTAT,"$PATH_TO_QSTAT")
+        AC_DEFINE_UNQUOTED(PATH_TO_QSTAT,"$PATH_TO_QSTAT",[path to qstat/quakestat])
         EXTRAS="$EXTRAS check_game"
 else
         echo "** Get qstat from http://www.activesw.com/people/steve/qstat.html in order to make check_game plugin"
@@ -795,7 +769,7 @@ fi
 AC_PATH_PROG(PATH_TO_FPING,fping)
 if test -x "$PATH_TO_FPING"
 then
-        AC_DEFINE_UNQUOTED(PATH_TO_FPING,"$PATH_TO_FPING")
+        AC_DEFINE_UNQUOTED(PATH_TO_FPING,"$PATH_TO_FPING",[path to fping])
         EXTRAS="$EXTRAS check_fping"
 else
         echo "** Get fping from http://www.fping.com in order to make check_fping plugin"
@@ -804,7 +778,7 @@ fi
 AC_PATH_PROG(PATH_TO_SSH,ssh)
 if test -x "$PATH_TO_SSH"
 then
-        AC_DEFINE_UNQUOTED(SSH_COMMAND,"$PATH_TO_SSH")
+        AC_DEFINE_UNQUOTED(SSH_COMMAND,"$PATH_TO_SSH",[path to ssh binary])
         EXTRAS="$EXTRAS check_by_ssh"
 else
         echo "** Get ssh in order to make check_by_ssh plugin"
@@ -817,8 +791,8 @@ dnl if /bin/test -e "/proc/meminfo"
 if [cat /proc/meminfo > /dev/null 2>&1]
 then
         echo "found /proc/meminfo"
-        AC_DEFINE(HAVE_PROC_MEMINFO)
-        AC_DEFINE_UNQUOTED(PROC_MEMINFO,"/proc/meminfo")
+        AC_DEFINE(HAVE_PROC_MEMINFO,1,[Define if we have /proc/meminfo])
+        AC_DEFINE_UNQUOTED(PROC_MEMINFO,"/proc/meminfo",[path to /proc/meminfo (if name changes or something)])
         EXTRAS="$EXTRAS check_swap"
 elif [swap -l 2>&1 | egrep -i "swapfile" >/dev/null]
 then